Funding type
This project involves public funds, public land, or is a Federally funded roadway project.
IH 35 in San Marcos, TX
SH 80 to RM 12, San Marcos, TX, 78666
IH 35 is a new construction project at SH 80 to RM 12, San Marcos, in Hays County, TX, tracked from its Texas Department of Licensing and Regulation (TDLR) registration. Construction complete (TDLR inspection passed Mar 2026). The project has an estimated value of $89.0M across about 141,600 sq ft.
- Estimated project value
- $89.0M
About this figure
Estimated construction cost supplied in the TDLR filing. This is not a current property appraisal or a final construction invoice.
- Reported floor area
- 141,600 ft²
About this figure
Square footage reported for this scope of work. It may cover only part of a larger property.
- Estimated cost / ft²
- $629/sqft
About this figure
Calculated from this filing’s estimated cost divided by its reported square footage. Available only when both figures are supplied; it is not a market benchmark.
- Scheduled duration
- 3y 7mo
About this figure
The interval between the filed start and completion dates. These dates describe the proposed schedule and do not measure actual construction progress.
The project record
Project timeline
Explore filed milestones and scheduled dates. Open a milestone for its source.
5 timeline dates shown.
Project registered · TDLR filing
Registration of the project with the Texas Department of Licensing and Regulation.
Source: TDLR filing
View source recordReview complete · TDLR filing
The filing records completion of the accessibility review.
1 days after the preceding date shown.
Source: TDLR filing
View source recordScheduled construction start · Scheduled date
A date supplied in the filing; this does not confirm that work started or finished.
175 days after the preceding date shown.
Source: TDLR filing
View source recordScheduled completion · Scheduled date
A date supplied in the filing; this does not confirm that work started or finished.
1,295 days after the preceding date shown.
Source: TDLR filing
View source recordInspection complete · TDLR filing
The filing records completion of the accessibility inspection.
351 days after the preceding date shown.
Source: TDLR filing
View source record
Inspection Complete
Final inspection completed, awaiting project closure
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IH 35 is a New Construction project located at SH 80 to RM 12, San Marcos, TX 78666 in San Marcos, Texas. The project has an estimated value of $89.0M covering 141,600 sq ft. TxDOT District: Austin is the property owner and Volkert is the design firm of record. The project was registered with TDLR on March 15, 2021.
Frequently Asked Questions
What is IH 35?
IH 35 is a new construction project at SH 80 to RM 12 in San Marcos, Texas, registered with the Texas Department of Licensing and Regulation (TDLR). Scope of work: Reconstruction of the main lanes and frontage roads, addition of auxiliary lanes, ramp reversal and modification, bridge replacement, intersection improvements, and bicycle and pedestrian accommodations.
Is IH 35 open in San Marcos?
Construction on IH 35 is complete — TDLR records show the project passed its required accessibility inspection in Mar 2026. The building is finished and very likely open.
Where is IH 35 located?
IH 35 is located at SH 80 to RM 12, San Marcos, TX, 78666, in Hays County.
Who is the owner or developer of IH 35?
TxDOT District: Austin is the property owner/developer of record for IH 35, per its TDLR project registration.
Who is the architect or design firm for IH 35?
Volkert is the design firm of record for IH 35, according to its TDLR filing.
How much does IH 35 cost and how big is it?
IH 35 has an estimated construction value of $89.0M and approximately 141,600 square feet (about $629/sqft), based on its TDLR filing.
Scope of Work
Reconstruction of the main lanes and frontage roads, addition of auxiliary lanes, ramp reversal and modification, bridge replacement, intersection improvements, and bicycle and pedestrian accommodations.
Note: This project is registered under the Texas Accessibility Standards (TAS) program. TDLR registration is required for commercial and public facility construction to ensure compliance with accessibility requirements under Texas Government Code Chapter 469.
Location & views
SH 80 to RM 12, San Marcos, TX, 78666
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